The incident in China is similar to a mysterious illness that sickened at least 10 Canadian diplomats and their family members who were posted in Havana between April 2017 and January 2018.

Canada's decision to withdraw the families of diplomats came after reports of mysterious illnesses that affected its staff.

Global Affairs Canada announced the changes after a nearly year-long investigation into a mysterious illness that has stricken 10 diplomats and their family members who were posted in Havana between April 2017 and January 2018.